斜率斜率斜率.........
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<map>
#include<cstring>
#include<cstdlib>
#include<vector>
using namespace std;
struct node
{
int x,y;
node(){}
node(int a,int b){x=a;y=b;}
};
int main()
{
// freopen("in","r",stdin);
vector<node>box;
map<double,int>dir;
string s;
int T,i,j,k,n,x,y,ans,t;
cin>>T;
ge......
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